Settle up to prevent apple leaf roller moths

In the recent past, many farmers have reported that their own orchards have been plagued by pests and their leaves have been broken and damaged. This is the detrimental symptom of the apple leaf roller moth. In May of each year, the overwintering larvae of the apple leaf roller moth start its activity. The rainfall in the previous period provided favorable conditions for larval activity and adult oviposition. If you want your own orchard to produce good apples this year, Apple leaf roller moths need more control.

Miniature leaf moth

The young larvae overwintered in the cracks in the bark, around the cut kerfs, and under the old curled-up knot. The buds began sprouting the following year and the food was infested. Overwintering adults emerged in mid-May. The first generation of adults occurred from early July to mid-August. The second generation of adults took place from late August to late September. The third-generation larvae began to overwinter in mid-October.

When the adult eclosion occurs, the body is moved out of the leaf, leaving the pod in the leaf. During the day, it rarely flies. It often lurks in and out of the canopy of the canopy. It is active at night. It has a strong chemotaxis and a weak phototaxis. It has a strong tendency towards sweet and sour liquids or fruit vinegar and also uses molasses for nutritional supplements. After spawning, eggs are laid on the surface of the leaf or fruit surface, and eggs are gathered into blocks. During the 7-10 days of the egg period, the larvae first feed on the leaves near the egg masses after hatching, and then they are scattered and harmed, and have drooping drooping habits. The first generation larvae mainly harm the leaves and sometimes also young fruit; the second and third generation larvae harm both the leaves and young fruit.

Big leaf roller moth

The young larvae overwintered in the cracks and cracks of the bark. The next year when the flower bud opens, it will damage the young leaves, and the leaves will be damaged after being slightly larger.

The adult overwintering period is from mid-May to mid-June. The first generation of adults occurs from early July to late August. The second generation of adults occurs from mid-to-late September. After 10 months, the larvae overwinter. The habits of adults and larvae are the same as those of apple leaf roller moth, and they have obvious tropism towards light and sweet and sour liquid.

Yellow leaf roller moth

Overwintering adults overwinter in weeds and deciduous trees in orchards. The next year, flower buds sprout and they overwinter. The soon-to-be winter spawns on the sides of trunks, branches and shoots. After larvae are hatched, they damage young shoots and young leaves.

The first generation of adults occurred in the middle and late July, the second generation of adults occurred in the middle and late August, and overwintering adults occurred from late September to October. Adults have certain tropism towards black light and sweet and sour liquid. After emergence, they lay eggs and lay eggs sparsely on the front of leaves, especially on the upper middle leaves of shoots. The first generation of eggs is about 20 days, and then each generation of eggs is 4 to 5 days.

The larvae have habits of turning leaves and they like to eat the young leaves in the upper part of the shoots. Mature larvae have a brown head, a yellow-green body, a spindle shape, a thicker middle, and two smaller, less active ones.

Control methods

Two or more attracting lamps, such as a solar insect killer lamp and a black light lamp, are suspended by physical control. The phototaxis of leaf roller moth is used to induce and kill.

Make ratio of sweet and sour liquid sweet and sour liquid, sugar: white wine: vinegar: water = 5:5:20:80 (volume fraction). After mid-June, suspend two bottles per mu. Use sweet vinegar of leaf roller moth. Sex to seduce and kill.

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